Document Detail

Controlled topography change of sub-diffraction structures based on photosensitive polymer films induced by surface plasmon polaritons.
MedLine Citation:
PMID:  23701312     Owner:  NLM     Status:  Publisher    
We discuss the controlled sub-diffraction modulations of photosensitive polymer films which are induced by surface plasmon interference in striking contrast in well-known conventional microscopic gratings. The near-field light intensity patterns were generated at the nano-slits fabricated in a silver layer with the photosensitive polymer film placed above. We observed that the topographical modulations can be excited only when the polarization is perpendicular to the nano-slits. Moreover, we have shown that light with certain wavelengths resulted in a characteristic topographical pattern with the periodicity three times smaller than the wavelength of incoming light. A combination of experimental observations with simulations showed that the unique sub-diffraction topographical patterns are caused by constructive interference between two counter-propagating surface plasmon waves generated at neighboring nano-slits in the metal layer beneath the photosensitive polymer film. The light intensity distribution was simulated to demonstrate strong dependency upon the slit array periodicity as well as wavelength and polarization of incoming light.
Tobias Af König; Vladimir V Tsukruk; Svetlana A Santer
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-5-23
Journal Detail:
Title:  ACS applied materials & interfaces     Volume:  -     ISSN:  1944-8252     ISO Abbreviation:  ACS Appl Mater Interfaces     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-5-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101504991     Medline TA:  ACS Appl Mater Interfaces     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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